Emerging Australian star Alexei Popyrin has claimed the biggest win of his career, dismantling Novak Djokovic to head into the fourth round of a grand slam for the first time. Emerging Australian star Alexei Popyrin has claimed the biggest win of his career, dismantling Novak Djokovic to head into the fourth round of a grand slam for the first time. Sport / Tennis Sydney Morning Herald – Latest News